tomorrow night on the show, lisa ling, zac efron and music from rhymefest. on thursday, matthew fox, josh hutchison and the music from the swell season. hutcherson, right? and the swell season. so there you go. please join us for. our first guest tonight has been a successful actress since before she was even born, i think. on friday, she provides the voice of a feline secret agent in the new movie "cats and dogs, the revenge of kitty galore." please say hello to christina applegate. [ cheers and applause ] >> jimmy: now i'm confused. [ cheers and applause ] you -- you're pregnant with a sweatshirt? >> yes. >> jimmy: what's going on? >> it was all like a, you know, a spencer/heidi publicity stunt. >> jimmy: you're not really -- >> no, i am. it's just smaller. i thought it would be better to enhance it. >> jimmy: it's more exciting to see the big, giant -- >> oh my gosh, she's like 15 months! >> jimmy: then i saw that there was a lump in it, i thought -- >> there's a zipper and a button. >> jimmy: there should not be a zipper in your baby. how have you been f